System Administrator 2026 — Test 76

Correct Answer: D. D. Kernel
Explanation: The kernel can implement the message passing and control which acts as a message passer and controller between the tasks.

Correct Answer: A. A. 2
Explanation: There are two basic types of messages associated with the real-time operating system. These are semaphores and messages.

Correct Answer: B. B. Messages
Explanation: The messages can carry information and it can also control the task regarding the real-time operating systems. These are also known as events.

Correct Answer: D. D. Tcp
Explanation: TCP is transport layer protocol.

Correct Answer: B. B. Message
Explanation: For Application, Presentation and Session layers there is no data format for message. Message is message as such in these three layers. But when it comes to Transport, Network, Data and Physical layer they have data in format of segments, packets, frames and bits respectively.

Correct Answer: D. D. Both peer-to-peer & client-server
Explanation: HTTP is a protocol.

Correct Answer: C. C. Both transport layer protocol and maximum buffer size
Explanation: Application layer provides the interface between applications and the network. So application developer can decide what transport layer to use and what should be its maximum buffer size.

Correct Answer: A. A. End to end
Explanation: End to End service is provided in the application layer. Whereas process to process service is provided at the transport layer.

Correct Answer: C. C. Elastic application
Explanation: Because it can work with available throughput.

Correct Answer: C. C. Port
Explanation: IP address lets you know where the network is located. Whereas MAC address is a unique address for every device. Port address identifies a process or service you want to carry on.